Loughborough University is a top-ten rated university in England for research intensity (REF2014) and an outstanding 66% of the work of Loughborough’s academic staff who were eligible to be submitted to the REF was judged as ‘world-leading’ or ‘internationally excellent’, compared to a national average figure of 43%. In choosing Loughborough for your research, you’ll work alongside academics who are leaders in their field. You will benefit from comprehensive support and guidance from our Doctoral College, including tailored careers advice, to help you succeed in your research and future career. The proposed research aims at understanding the behaviour of fluids containing nanoparticles (nanofluids) in high-pressure and relatively high temperature narrow conjunctions, typical of various tribological contacts. Since such conjunctions are often subject to cavitation; therefore, a multi-phase computational platform along with experimental methods and facilities are required to be utilised and developed to incorporate various physical phenomena encountered in such contacts. The influence of surface texture will also be considered along with developing an understanding of inter-particle and the particle-continuum forces on the tribological performance. The effect of nanofluids on cavitation and subsequent associated problems such as cavitation-induced erosion in the contacts would also be considered.